Sumitomo Mitsui Trust Group, Inc.
SEC Form 13F institutional filer · CIK 0001475365
13F-HR · 504 reported holdings · 2026-03-31
Financial services group, parent of Sumitomo Mitsui Trust Bank.
Reported long-US-equity value
$139.55B
Top-10 concentration
35.0%
Sumitomo Mitsui Trust Group, Inc. — $140B AUM allocation strategy
Sumitomo Mitsui Trust Group, Inc. files SEC Form 13F and reports $140B of long US equity value across 504 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 21.6%, followed by Communication Services 8.1% and Consumer Discretionary 5.7%.
The top 10 holdings account for 35% of reported value — a broadly spread portfolio. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
Sumitomo Mitsui Trust Group, Inc. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$140B
total across 504 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
35% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$HBAN +814K sh · +$5.48M+$COHR +749K sh · +$179M+$HOOD +632K sh · −$227M
Biggest trims (shares)
−$AMCR −5.58M sh · −$11M−$NVDA −2.61M sh · −$1.22B−$AAPL −1.98M sh · −$1.14B
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors10.8%—
- Interactive Media & Services7.3%—
- Technology Hardware, Storage & Peripherals6.0%—
- Systems Software4.7%—
- Broadline Retail3.7%—
- Pharmaceuticals2.2%—
- Automobile Manufacturers2.0%—
- Consumer Staples Merchandise Retail1.7%—
- Other holdings61.6%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 60.6M | $10.6B | -2.61M | 7.6% |
| $AAPL | Apple Inc | 33.2M | $8.43B | -1.98M | 6.0% |
| $MSFT | Microsoft Corporation | 17.7M | $6.55B | -934K | 4.7% |
| $AMZN | Amazon.com Inc | 24.6M | $5.13B | -1.27M | 3.7% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 13.2M | $3.8B | -664K | 2.7% |
| $GOOGL | Alphabet Inc | 12.1M | $3.47B | -525K | 2.5% |
| $AVGO | Broadcom Inc | 11.1M | $3.44B | -468K | 2.5% |
| $META | Meta Platforms Inc | 5.08M | $2.9B | -250K | 2.1% |
| $TSLA | Tesla Inc | 7.46M | $2.77B | -263K | 2.0% |
| $JPM | JP Morgan Chase & Co | 6.11M | $1.8B | -364K | 1.3% |
…and 494 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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